Question

Basic principles of embryonic development were pronounced by:

Options

• Von Baer

• Weismann

• Haeckel

• Morgan

Answer 1

Von Baer

Explanation:

In 1828, von Baer, the father of modern embryology, proposed Baer's law, which states that during embryonic development, the generalised beat uses (such as the brain, spinal chord, axial skeleton, aortic arches, and so on, which are common to all vertebrates) appeased earlier than the special features (such as hair in mammals, only feathers in birds, only limbs found in quadrupeds only) which distinguishes the various numbers of the group.